The most common and most likely answer to this crossword clue is the 11 letter word UNVARNISHED
I've seen this crossword clue in The Daily Telegraph
U
N
V
A
R
N
I
S
H
E
D
More clues leading to the result UNVARNISHED
Buddy explains!

The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does UNVARNISHED mean?
UNVARNISHED adjective- Not having been coated with varnish (or a similar surface treatment).
- (by extension) Natural, unmodified, unembellished, not exaggerated, as in unvarnished truth.